Disparity on the 15 May 2023
- Averton
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Disparity on the 15 May 2023
There are just not enough hours in a day! Due to other commitments we were only able to have a short time to take images and then didn't get to process them til late.
For the first time since using the SSM there was a very clear disparity between the data collected from the SSM and the actual seeing we experienced. The SSM data gave an average seeing of 1.1 arc seconds with a standard deviation of 0.3. The actual seeing was following the instantaneous values from the SSM ie when the SSM was showing bad figures the seeing was worse and when it showed good figures the seeing was better. However worse and better here are relative to an overall very poor seeing. The images on the screen were unstable and blurry and moving around considerably. The observed average seeing was far more like 2-3 arc seconds at best. We don't mount the SSM sensor at the objective of the scope as recommended but on a separate tripod beside the scope mount. This has never appeared to be an issue in the past but perhaps accounts for the disparity.
Anyway, here are the best images we could extract from the data. The 540nm one is particularly poor in comparison to more recent images.
Ha full disk two panel mosaic.
Full disk two panel mosaic in 393nm.
Some Ha close ups.
For the first time since using the SSM there was a very clear disparity between the data collected from the SSM and the actual seeing we experienced. The SSM data gave an average seeing of 1.1 arc seconds with a standard deviation of 0.3. The actual seeing was following the instantaneous values from the SSM ie when the SSM was showing bad figures the seeing was worse and when it showed good figures the seeing was better. However worse and better here are relative to an overall very poor seeing. The images on the screen were unstable and blurry and moving around considerably. The observed average seeing was far more like 2-3 arc seconds at best. We don't mount the SSM sensor at the objective of the scope as recommended but on a separate tripod beside the scope mount. This has never appeared to be an issue in the past but perhaps accounts for the disparity.
Anyway, here are the best images we could extract from the data. The 540nm one is particularly poor in comparison to more recent images.
Ha full disk two panel mosaic.
Full disk two panel mosaic in 393nm.
Some Ha close ups.
Clare & Peter
- Montana
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Re: Disparity on the 15 May 2023
A beautiful set from you both
I know what you mean about image processing, I still have some from last year
Alexandra
I know what you mean about image processing, I still have some from last year
Alexandra
- MAURITS
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Re: Disparity on the 15 May 2023
A great set here!
http://brierleyhillsolar.blogspot.co.uk/
Solar images, a collection of all the most up to date live solar data on the web, imaging & processing tutorials - please take a look!
- DeepSolar64
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Re: Disparity on the 15 May 2023
Absolutely Awesome Avertons! That should have been your username!! Absolutely awesome work. All are very impressive.
James.
James.
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Astro-Tech AT72EDII with Altair solar wedge
Celestron NexStar 102GT with Altair solar wedge
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Orion 70mm Solar Telescope
Celestron AstroMaster Alt/Az Mount
Meade Coronado SolarMax II 60 DS
Meade Coronado SolarMax II 90 DS
Meade Coronado AZS Alt/Az Mount
Astro-Tech AT72EDII with Altair solar wedge
Celestron NexStar 102GT with Altair solar wedge
Losmandy AZ8 Alt/Az Mount
Sky-Watcher AZGTI Alt-Az GoTo mount
Cameras: ZWO ASI178MM, PGR Grasshopper, PGR Flea
Lunt, Coronado, TeleVue, Orion and Meade eyepieces
Visual Observer
" Way more fun to see it! "
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Re: Disparity on the 15 May 2023
Great pictures!
https://www.facebook.com/oleg.lavigne/
https://www.astrobin.com/users/RamonLviv/
https://www.astroclub.kiev.ua/forum/ind ... ic=46758.0
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https://www.astrobin.com/users/RamonLviv/
https://www.astroclub.kiev.ua/forum/ind ... ic=46758.0
Telescope: TS 152/900/Bresser 102/1350
Baader D-ERF 160MM
2xBaader 1.25 GPC
2xLunt 50mm
Lunt Cak B1200
Coronado BF15
Camera: Apollo Max 432M/ Apollo Mini 429M/Player One Mars II 462M/QHY 290MM
Mounh: 2xSky Watcher AZEQ6
Telecentric Lense: Televue Powermate 2/2.5x/4X/5X
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Re: Disparity on the 15 May 2023
Lovely full disks and beautiful details on the closeup views!
~ Petrus ~
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LS80THa DSII - Calcium II K module 12mm - Lunt Herschel wedge 1.25" - Quark Chromosphere - Solarscout Quark - Sol'Ex
- Averton
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Re: Disparity on the 15 May 2023
Thanks Mark, James, Aaron, Oleg and Petrus for your encouraging comments - appreciated
Clare & Peter
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Re: Disparity on the 15 May 2023
I can't keep up with all the wonderful pictures here.
I do not look at the sky with the eyes of an astronomer, but of a person looking for the beauty of nature.
- Averton
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Re: Disparity on the 15 May 2023
Thanks Petr
You're right, there are just so many amazing images being posted on the forum at the moment.
Clare & Peter